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* Merge tag 'fbdev-3.13' of ↵Linus Torvalds2013-11-141-1/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull fbdev changes from Tomi Valkeinen: "Nothing particularly stands out in this pull request. The biggest part of the changes are cleanups. Maybe one fix to mention is the "fb: reorder the lock sequence to fix potential dead lock" which hopefully fixes the fb locking issues reported by multiple persons. There are also a few commits that have changes to arch/arm/mach-at91 and arch/avr32, which have been acked by the maintainers" * tag 'fbdev-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (143 commits) fb: reorder the lock sequence to fix potential dead lock fbdev: shmobile-lcdcfb: Convert to clk_prepare/unprepare fbdev: shmobile-hdmi: Convert to clk_prepare/unprepare omapdss: Add new panel driver for Topolly td028ttec1 LCD. video: exynos_mipi_dsi: Unlock the mutex before returning video: da8xx-fb: remove unwanted define video: Remove unnecessary semicolons simplefb: use write-combined remapping simplefb: fix unmapping fb during destruction OMAPDSS: connector-dvi: fix releasing i2c_adapter OMAPDSS: DSI: fix perf measuring ifdefs framebuffer: Use fb_<level> framebuffer: Add fb_<level> convenience logging macros efifb: prevent null-deref when iterating dmi_list fbdev: fix error return code in metronomefb_probe() video: xilinxfb: Fix for "Use standard variable name convention" OMAPDSS: Fix de_level in videomode_to_omap_video_timings() video: xilinxfb: Simplify error path video: xilinxfb: Use devm_kzalloc instead of kzalloc video: xilinxfb: Use standard variable name convention ...
| * video: exynos_mipi_dsi: Unlock the mutex before returningSachin Kamat2013-10-301-0/+1
| | | | | | | | | | | | | | | | Mutex should be unlocked before returning. Fixes mutex lock-unlock imbalance issue. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * video: Remove unnecessary semicolonsJoe Perches2013-10-301-1/+1
| | | | | | | | | | | | | | These aren't necessary after switch, for, and if blocks. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* | video: exynos_dp: Use the generic PHY driverJingoo Han2013-10-162-4/+13
| | | | | | | | | | | | | | | | | | Use the generic PHY API to control the DP PHY. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | video: exynos_dp: remove non-DT support for Exynos Display PortJingoo Han2013-10-164-94/+135
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Exynos Display Port can be used only for Exynos SoCs. In addition, non-DT for EXYNOS SoCs is not supported from v3.11; thus, there is no need to support non-DT for Exynos Display Port. The 'include/video/exynos_dp.h' file has been used for non-DT support and the content of file include/video/exynos_dp.h is moved to drivers/video/exynos/exynos_dp_core.h. Thus, the 'exynos_dp.h' file is removed. Also, 'struct exynos_dp_platdata' is removed, because it is not used any more. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | video: exynos_mipi_dsim: Use the generic PHY driverSylwester Nawrocki2013-10-162-9/+11
|/ | | | | | | | | | | | | Use the generic PHY API instead of the platform callback for the MIPI DSIM DPHY enable/reset control. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Donghwa Lee <dh09.lee@samsung.com> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* video: exynos: Ensure definitions match prototypesMark Brown2013-08-301-0/+1
| | | | | | | | | Ensure that the definitions of functions match the prototypes used by other modules by including the header with the prototypes in the files with the definitions. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2013-04-301-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "Usual stuff, mostly comment fixes, typo fixes, printk fixes and small code cleanups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (45 commits) mm: Convert print_symbol to %pSR gfs2: Convert print_symbol to %pSR m32r: Convert print_symbol to %pSR iostats.txt: add easy-to-find description for field 6 x86 cmpxchg.h: fix wrong comment treewide: Fix typo in printk and comments doc: devicetree: Fix various typos docbook: fix 8250 naming in device-drivers pata_pdc2027x: Fix compiler warning treewide: Fix typo in printks mei: Fix comments in drivers/misc/mei treewide: Fix typos in kernel messages pm44xx: Fix comment for "CONFIG_CPU_IDLE" doc: Fix typo "CONFIG_CGROUP_CGROUP_MEMCG_SWAP" mmzone: correct "pags" to "pages" in comment. kernel-parameters: remove outdated 'noresidual' parameter Remove spurious _H suffixes from ifdef comments sound: Remove stray pluses from Kconfig file radio-shark: Fix printk "CONFIG_LED_CLASS" doc: put proper reference to CONFIG_MODULE_SIG_ENFORCE ...
| * treewide: Fix typos in kernel messagesMasanari Iida2013-03-311-2/+2
| | | | | | | | | | | | | | | | Correct spelling typos in various part of printk. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | drivers/video/exynos/exynos_mipi_dsi.c: convert to devm_ioremap_resource()Sachin Kamat2013-04-291-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the newly introduced devm_ioremap_resource() instead of devm_request_and_ioremap() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages; so all explicit error messages can be removed from the failure code paths. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Donghwa Lee <dh09.lee@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | video/exynos: remove unnecessary header inclusionsArnd Bergmann2013-04-113-6/+0
|/ | | | | | | | | | | | In multiplatform configurations, we cannot include headers provided by only the exynos platform. Fortunately a number of drivers that include those headers do not actually need them, so we can just remove the inclusions. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-fbdev@vger.kernel.org Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
* Merge branch 'akpm' (incoming from Andrew)Linus Torvalds2013-02-213-70/+37
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge misc patches from Andrew Morton: - Florian has vanished so I appear to have become fbdev maintainer again :( - Joel and Mark are distracted to welcome to the new OCFS2 maintainer - The backlight queue - Small core kernel changes - lib/ updates - The rtc queue - Various random bits * akpm: (164 commits) rtc: rtc-davinci: use devm_*() functions rtc: rtc-max8997: use devm_request_threaded_irq() rtc: rtc-max8907: use devm_request_threaded_irq() rtc: rtc-da9052: use devm_request_threaded_irq() rtc: rtc-wm831x: use devm_request_threaded_irq() rtc: rtc-tps80031: use devm_request_threaded_irq() rtc: rtc-lp8788: use devm_request_threaded_irq() rtc: rtc-coh901331: use devm_clk_get() rtc: rtc-vt8500: use devm_*() functions rtc: rtc-tps6586x: use devm_request_threaded_irq() rtc: rtc-imxdi: use devm_clk_get() rtc: rtc-cmos: use dev_warn()/dev_dbg() instead of printk()/pr_debug() rtc: rtc-pcf8583: use dev_warn() instead of printk() rtc: rtc-sun4v: use pr_warn() instead of printk() rtc: rtc-vr41xx: use dev_info() instead of printk() rtc: rtc-rs5c313: use pr_err() instead of printk() rtc: rtc-at91rm9200: use dev_dbg()/dev_err() instead of printk()/pr_debug() rtc: rtc-rs5c372: use dev_dbg()/dev_warn() instead of printk()/pr_debug() rtc: rtc-ds2404: use dev_err() instead of printk() rtc: rtc-efi: use dev_err()/dev_warn()/pr_err() instead of printk() ...
| * video: exynos_dp: move disable_irq() to exynos_dp_suspend()Ajay Kumar2013-02-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | disable_irq() should be moved to exynos_dp_suspend(), because enable_irq() is called at exynos_dp_resume(). Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * video: exynos_dp: add missing of_node_put()Jingoo Han2013-02-211-6/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | of_find_node_by_name() returns a node pointer with refcount incremented, use of_node_put() on it when done. of_find_node_by_name() will call of_node_put() against the node pass to from parameter, thus we also need to call of_node_get(from) before calling of_find_node_by_name(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * drivers/video/exynos/exynos_mipi_dsi.c: use devm_* APIsSachin Kamat2013-02-211-51/+17
| | | | | | | | | | | | | | | | | | | | | | | | devm_* APIs are device managed and make exit and cleanup code simpler. While at it also remove some unused labels and fix an error path. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Donghwa Lee <dh09.lee@samsung.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * drivers/video/exynos/exynos_mipi_dsi.c: fix an error check conditionSachin Kamat2013-02-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Checking an unsigned variable for negative value returns false. Hence use the macro to fix it. Fixes the following smatch warning: drivers/video/exynos/exynos_mipi_dsi.c:417 exynos_mipi_dsi_probe() warn: unsigned 'dsim->irq' is never less than zero. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Donghwa Lee <dh09.lee@samsung.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * drivers/video/exynos/s6e8ax0.c: use devm_* APIs in s6e8ax0.cSachin Kamat2013-02-211-10/+4
| | | | | | | | | | | | | | | | | | | | | | | | devm_* APIs are device managed and make error handling and code cleanup simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Donghwa Lee <dh09.lee@samsung.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge tag 'tty-3.9-rc1' of ↵Linus Torvalds2013-02-212-0/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial patches from Greg Kroah-Hartman: "Here's the big tty/serial driver patches for 3.9-rc1. More tty port rework and fixes from Jiri here, as well as lots of individual serial driver updates and fixes. All of these have been in the linux-next tree for a while." * tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits) tty: mxser: improve error handling in mxser_probe() and mxser_module_init() serial: imx: fix uninitialized variable warning serial: tegra: assume CONFIG_OF TTY: do not update atime/mtime on read/write lguest: select CONFIG_TTY to build properly. ARM defconfigs: add missing inclusions of linux/platform_device.h fb/exynos: include platform_device.h ARM: sa1100/assabet: include platform_device.h directly serial: imx: Fix recursive locking bug pps: Fix build breakage from decoupling pps from tty tty: Remove ancient hardpps() pps: Additional cleanups in uart_handle_dcd_change pps: Move timestamp read into PPS code proper pps: Don't crash the machine when exiting will do pps: Fix a use-after free bug when unregistering a source. pps: Use pps_lookup_dev to reduce ldisc coupling pps: Add pps_lookup_dev() function tty: serial: uartlite: Support uartlite on big and little endian systems tty: serial: uartlite: Fix sparse and checkpatch warnings serial/arc-uart: Miscll DT related updates (Grant's review comments) ... Fix up trivial conflicts, mostly just due to the TTY config option clashing with the EXPERIMENTAL removal.
| * | fb/exynos: include platform_device.hArnd Bergmann2013-02-142-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch 16559ae "kgdb: remove #include <linux/serial_8250.h> from kgdb.h" removed an implicit inclusion of linux/platform_device.h from the exynos framebuffer driver. This adds back the required explicit header file inclusions. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Ajay Kumar <ajaykumar.rs@samsung.com> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | Merge tag 'driver-core-3.9-rc1' of ↵Linus Torvalds2013-02-211-5/+3
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core patches from Greg Kroah-Hartman: "Here is the big driver core merge for 3.9-rc1 There are two major series here, both of which touch lots of drivers all over the kernel, and will cause you some merge conflicts: - add a new function called devm_ioremap_resource() to properly be able to check return values. - remove CONFIG_EXPERIMENTAL Other than those patches, there's not much here, some minor fixes and updates" Fix up trivial conflicts * tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits) base: memory: fix soft/hard_offline_page permissions drivercore: Fix ordering between deferred_probe and exiting initcalls backlight: fix class_find_device() arguments TTY: mark tty_get_device call with the proper const values driver-core: constify data for class_find_device() firmware: Ignore abort check when no user-helper is used firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER firmware: Make user-mode helper optional firmware: Refactoring for splitting user-mode helper code Driver core: treat unregistered bus_types as having no devices watchdog: Convert to devm_ioremap_resource() thermal: Convert to devm_ioremap_resource() spi: Convert to devm_ioremap_resource() power: Convert to devm_ioremap_resource() mtd: Convert to devm_ioremap_resource() mmc: Convert to devm_ioremap_resource() mfd: Convert to devm_ioremap_resource() media: Convert to devm_ioremap_resource() iommu: Convert to devm_ioremap_resource() drm: Convert to devm_ioremap_resource() ...
| * | video: Convert to devm_ioremap_resource()Thierry Reding2013-01-221-5/+3
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | Merge branch 'for-3.9-cleanups' of ↵Linus Torvalds2013-02-191-4/+2
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue [delayed_]work_pending() cleanups from Tejun Heo: "This is part of on-going cleanups to remove / minimize usages of workqueue interfaces which are deprecated and/or misleading. This round drops a number of usages of [delayed_]work_pending(), which are dangerous as they lack any form of synchronization and thus often lead to buggy / unnecessary code. There are a couple legitimate use cases in kernel. Hopefully, they can be converted and [delayed_]work_pending() can be removed completely. Even if not, removing most of misuses should make it more difficult to find examples of misuses and thus slow down growth of them. These changes are independent from other workqueue changes." * 'for-3.9-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: wimax/i2400m: fix i2400m->wake_tx_skb handling kprobes: fix wait_for_kprobe_optimizer() ipw2x00: simplify scan_event handling video/exynos: don't use [delayed_]work_pending() tty/max3100: don't use [delayed_]work_pending() x86/mce: don't use [delayed_]work_pending() rfkill: don't use [delayed_]work_pending() wl1251: don't use [delayed_]work_pending() thinkpad_acpi: don't use [delayed_]work_pending() mwifiex: don't use [delayed_]work_pending() sja1000: don't use [delayed_]work_pending()
| * video/exynos: don't use [delayed_]work_pending()Tejun Heo2012-12-281-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | There's no need to test whether a (delayed) work item in pending before queueing, flushing or cancelling it. Most uses are unnecessary and quite a few of them are buggy. Remove unnecessary pending tests from exynos_dp_core. Only compile tested. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Acked-by: Jingoo Han <jg1.han@samsung.com>
* | Drivers: video: remove __dev* attributes.Greg Kroah-Hartman2013-01-032-5/+5
|/ | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* video: exynos_dp: remove redundant parametersAjay Kumar2012-11-293-29/+15
| | | | | | | | | This patch cleans up few redundant parameters keeping the same functionality intact. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Fix incorrect setting for INT_CTLAjay Kumar2012-11-292-2/+3
| | | | | | | | INT_CTL register contains bits INT_POL0 and INT_POL1, and not INT_POL. This patch fixes the wrong register setting for INT_CTL. Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Reset and initialize DP before requesting irqAjay Kumar2012-11-291-7/+7
| | | | | | | | | | | If DP is not reset properly before kernel bootup(in bootloader code), there can be few pending interrupts, and sometimes they invoke DP irq handler as soon as the irq handler is registered in DP probe. So, we make the DP driver more robust by resetting and initializing DP at the earliest and then registering the irq handler. Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Enable hotplug interruptsSean Paul2012-11-293-14/+71
| | | | | | | | | | | Enable hotplug interrupts and move the hotplug scheduling into the interrupt handler. This allows us to introduce a screen at any time while we're running. [jg1.han@samsung.com: moved the bit masking of hotplug interrupts] Signed-off-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Olof Johansson <olofj@chromium.org> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Move hotplug into a workqueueSean Paul2012-11-292-44/+51
| | | | | | | | | | Move the hotplug related code from probe and resume into a workqueue. This allows us to initialize the DP driver (and resume it) when there is no monitor connected. Signed-off-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Olof Johansson <olofj@chromium.org> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Remove sink control to D0Sean Paul2012-11-291-6/+0
| | | | | | | | | According to DP spec, it is not required in the Link Training procedure. [jg1.han@samsung.com: modified the commit message] Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Fix bug when checking dp->irqSean Paul2012-11-291-1/+1
| | | | | | | | | Fix a bug where we check !dp->irq instead of the correct check for -ENXIO. Signed-off-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Olof Johansson <olofj@chromium.org> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Improve EDID error handlingSean Paul2012-11-292-13/+14
| | | | | | | | | | | | | EDID error handling has 2 problems: - It doesn't fail as early as it can - The retry counts for i2c and aux transactions are huge This patch fails if the initial i2c transaction fails, and reduces the aux and i2c retry counts down to 3. [jg1.han@samsung.com: reduced the retry count of exynos_dp_read_byte_from_dpcd()] Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Get pll lock before pattern setSean Paul2012-11-291-1/+13
| | | | | | | | | According to the exynos datasheet (Figure 49-10), we should wait for PLL lock before programming the training pattern when doing software eDP link training. Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Clean up SW link trainingSean Paul2012-11-291-173/+119
| | | | | | | | | Clean up some of the SW training code to make it more clear and reduce duplicate code. [jg1.han@samsung.com: used exynos_dp_write_bytes_to_dpcd()] Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Check DPCD return codesSean Paul2012-11-291-30/+56
| | | | | | | Add return code checks to the DPCD transactions in the SW link training Signed-off-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* video: exynos_dp: Add device tree support to DP driverAjay Kumar2012-11-292-20/+198
| | | | | | | | | This patch enables device tree based discovery support for DP driver. The driver is modified to handle platform data in both the cases: with DT and non-DT. Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Jingoo Han <jg1.han@samsung.com>
* Merge tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6Linus Torvalds2012-10-126-198/+208
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull fbdev updates from Florian Tobias Schandinat: "This includes: - large updates for OMAP - basic OMAP5 DSS support for DPI and DSI outputs - large cleanups and restructuring - some update to Exynos and da8xx-fb - removal of the pnx4008 driver (arch removed) - various other small patches" Fix up some trivial conflicts (mostly just include line changes, but also some due to the renaming of the deferred work functions by Tejun). * tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6: (193 commits) gbefb: fix compile error video: mark nuc900fb_map_video_memory as __devinit video/mx3fb: set .owner to prevent module unloading while being used video: exynos_dp: use clk_prepare_enable and clk_disable_unprepare drivers/video/exynos/exynos_mipi_dsi.c: fix error return code drivers/video/savage/savagefb_driver.c: fix error return code video: s3c-fb: use clk_prepare_enable and clk_disable_unprepare da8xx-fb: save and restore LCDC context across suspend/resume cycle da8xx-fb: add pm_runtime support video/udlfb: fix line counting in fb_write OMAPDSS: add missing include for string.h OMAPDSS: DISPC: Configure color conversion coefficients for writeback OMAPDSS: DISPC: Add manager like functions for writeback OMAPDSS: DISPC: Configure writeback FIFOs OMAPDSS: DISPC: Configure writeback specific parameters in dispc_wb_setup() OMAPDSS: DISPC: Configure overlay-like parameters in dispc_wb_setup OMAPDSS: DISPC: Add function to set channel in for writeback OMAPDSS: DISPC: Don't set chroma resampling bit for writeback OMAPDSS: DISPC: Downscale chroma if plane is writeback OMAPDSS: DISPC: Configure input and output sizes for writeback ...
| * video: exynos_dp: use clk_prepare_enable and clk_disable_unprepareJingoo Han2012-10-101-4/+4
| | | | | | | | | | | | | | | | Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare calls as required by common clock framework. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * drivers/video/exynos/exynos_mipi_dsi.c: fix error return codePeter Senna Tschudin2012-10-101-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert a nonnegative error return code to a negative one, as returned elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Donghwa Lee <dh09.lee@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_mipi_dsi: Remove unnecessary NULL checkSachin Kamat2012-09-221-5/+0
| | | | | | | | | | | | | | | | | | | | | | 'dsim' is allocated and checked for NULL in the probe function. Hence this check is redundant. This cleanup also fixes a potential NULL pointer dereference error when dsim which is NULL references its member in the error print message. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_mipi_dsi: Remove unused codeSachin Kamat2012-09-221-3/+0
| | | | | | | | | | | | | | | | This code is never executed and hence removed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_dp: increase AUX channel voltage levelJingoo Han2012-09-222-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The value of AUX channel differential amplitude current is changed from 8 mA to 16 mA, in order to increase AUX channel voltage level. In this case, AUX channel voltage level can be changed from 400 mV to 800 mV, when resistance between AUX TX and RX is 100 ohm. According to DP spec, although the normative voltage level is 390 mV, the informative voltage level is 430 mV. So, 800 mV can be helpful to improve voltage margin of AUX channel. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_dp: add bit-masking for LINK_TRAINING_CTL registerJingoo Han2012-09-222-4/+13
| | | | | | | | | | | | | | | | | | | | This patch adds bit-masking for LINK_TRAINING_CTL register, when pre-emphasis level is set. The bit 3 and bit 2 of LINK_TRAINING_CTL register are used for pre-emphasis level setting, so other bits should be masked. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_dp: replace link_status with link_align to check channel ↵Jingoo Han2012-09-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | equalization To check channel equalization, the value of LANE_ALIGN_STATUS_UPDATED is necessary in exynos_dp_channel_eq_ok(). Also, link_align includes this value. However, link_status does not include this value, so it makes the problem that channel equalization is failed during link training. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_dp: move setting analog parameter and interrupt to after sw resetJingoo Han2012-08-232-3/+3
| | | | | | | | | | | | | | | | | | | | SW reset sets DP TX to initial value, so configurations for analog parameter and interrupt are not set properly. Therefore, exynos_dp_init_analog_param() and exynos_dp_init_interrupt() should be moved to after sw reset is called, in order to set these values properly. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_dp: change return type of exynos_dp_init_video to voidJingoo Han2012-08-232-4/+2
| | | | | | | | | | | | | | | | This patch changes return type of exynos_dp_init_video to void, because the return value is unnecessary. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_dp: Fix get_pll_lock_status return valueSean Paul2012-08-232-2/+2
| | | | | | | | | | | | | | | | | | | | Fix the return value of exynos_dp_get_pll_lock_status to reflect what it actually returns. Signed-off-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Olof Johansson <olofj@chromium.org> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_dp: Change aux transaction failuresSean Paul2012-08-231-7/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the function name to aux transaction failure messages so we can tell which transaction is failing. It also changes the level of Aux Transaction fail messages from error to debug. We retry the transactions a few times and will report errors if warranted outside of this function. Signed-off-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Bernie Thompson <bhthompson@chromium.org> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos_dp: check time loop for RPLY_RECEIVJingoo Han2012-08-231-1/+9
| | | | | | | | | | | | | | | | This patch checks time loop for RPLY_RECEIV which means that AUX channel command reply is received. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
| * video: exynos-mipi-dsi: Add missing static storage class specifiersSachin Kamat2012-08-231-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | Fixes the following sparse warnings: drivers/video/exynos/exynos_mipi_dsi.c:208:22: warning: symbol 'exynos_mipi_dsi_find_lcd_device' was not declared. Should it be static? drivers/video/exynos/exynos_mipi_dsi.c:268:22: warning: symbol 'exynos_mipi_dsi_bind_lcd_ddi' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Donghwa Lee <dh09.lee@samsung.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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